public async void Init()
        {
            MessagingCenter.Subscribe <AddToDayPage>(this, "OnSaveItem", (sender) => viewModel.RefreshCommand.Execute(null));
            MessagingCenter.Subscribe <ToDayDetailPage, Guid>(this, "OnDeleted", (sender, id) =>
            {
                if (this.viewModel.Data.Any(x => x.Id == id))
                {
                    var removeItem = this.viewModel.Data.Single(x => x.Id == id);
                    this.viewModel.Data.Remove(removeItem);
                }
            });
            MessagingCenter.Subscribe <PickerLiquidationPage>(this, "OnSaveItem", (sender) => viewModel.RefreshCommand.Execute(null));

            ListViewThanhLy.ItemTapped += async(sender, e) =>
            {
                var item = e.Item as LiquidationToDay;
                await Navigation.PushAsync(new ToDayDetailPage(item.Id));
            };
            await viewModel.LoadData();

            loadingPopup.IsVisible = false;
        }
        public async void Init()
        {
            MessagingCenter.Subscribe <AddToDayPage>(this, "OnSaveItem", (sender) => viewModel.RefreshCommand.Execute(null));
            MessagingCenter.Subscribe <ToDayDetailPage, Guid>(this, "OnDeleted", (sender, todayId) =>
            {
                if (this.viewModel.Data.Any(x => x.Id == todayId))
                {
                    var removeItem = this.viewModel.Data.Single(x => x.Id == todayId);
                    this.viewModel.Data.Remove(removeItem);
                }
            });
            MessagingCenter.Subscribe <PickerLiquidationPage>(this, "OnSaveItem", (sender) => viewModel.RefreshCommand.Execute(null));
            Categories = DependencyService.Get <IServices.ILiquidation.ILiquidationCategoryService>().GetLiquidations();
            BindableLayout.SetItemsSource(CategoriesStackLayout, Categories);
            InitCategoriesLayout();
            ListViewThanhLy.ItemTapped += async(sender, e) =>
            {
                var item = e.Item as LiquidationToDay;
                await Navigation.PushAsync(new ToDayDetailPage(item.Id));
            };
            await viewModel.LoadData();

            loadingPopup.IsVisible = false;
        }